Report Generated 11/01/2023 at 0956

Page Description

2 - Mean Daily Water Temperature, Release Flow Rates and Air Temperatures with Monthly Averages

3 - Sacramento River Mean Daily Water Temperature Plot

4 - Trinity River Mean Daily Water Temperature Plot

5 - Shasta Lake Isothermobaths & Cold Water Pool Statistics

14 - Trinity Lake Isothermobaths & Cold Water Pool Statistics

23 - Whiskeytown Lake Isothermobaths & Cold Water Pool Statistics

x - TCD Configuration (External Link)

All Data in this Report is Preliminary and Subject to Change

Northern CVP Water Temperature Report

October - 2023
Shasta 

Generation 

Spring 

Creek P.P.

Keswick 

Total BSF RDB

Sep 6434 732 7370 68.9 70.2

10/01 49.7 48.5 58.2 50.8 51.3 52.0 53.1 53.9 55.1 53.1 49.4 52.8 56.2 6008 509 6403 66.5 62.7 64.8

10/02 49.5 48.4 58.2 50.7 51.1 52.0 53.2 54.2 55.3 53.2 49.2 51.8 55.4 5412 499 6412 68.0 63.5 65.2

10/03 49.2 48.4 58.1 50.8 51.4 52.4 53.7 54.7 ? 55.9 53.9 49.6 53.3 56.8 5774 586 6397 72.0 68.3 70.7

10/04 48.0 47.5 58.2 51.0 51.7 52.8 ? 54.2 ? 55.5 56.7 54.1 49.7 53.5 57.3 5897 505 6420 83.0 76.5 76.0

10/05 47.6 47.1 58.1 50.4 51.2 52.4 54.1 ? 55.5 56.9 54.0 49.8 53.3 57.0 5630 505 6414 81.0 70.4 74.4

10/06 47.9 47.2 58.1 49.4 50.1 51.4 53.3 ? 55.0 56.5 54.0 50.0 53.3 56.9 6026 493 6103 77.5 69.6 73.5

10/07 47.8 47.0 58.1 49.1 49.7 50.8 52.6 54.2 55.7 53.9 50.0 53.4 56.9 5456 503 6092 75.5 68.4 71.6

10/08 48.0 ? 47.1 58.1 49.4 50.0 51.0 52.5 53.9 55.3 53.9 50.1 53.4 56.9 5655 504 6095 74.5 67.5 72.0

10/09 47.8 47.0 58.0 49.1 49.3 50.0 52.0 53.6 54.9 53.4 49.9 52.8 55.8 5818 505 6092 67.0 62.5 65.7

10/10 48.5 47.4 58.0 48.8 49.0 49.6 51.1 52.5 53.7 53.3 49.8 52.3 55.2 5372 496 6095 60.5 60.5 61.9

10/11 48.6 47.5 57.9 48.9 49.2 50.0 51.0 51.9 52.8 53.2 49.6 51.6 54.4 5310 497 6132 60.5 57.5 60.7

10/12 48.7 ? 47.6 57.9 49.4 49.9 50.6 51.5 52.4 53.1 53.4 49.4 51.3 53.8 5695 498 6100 66.0 59.0 62.4

10/13 48.6 47.6 57.9 49.2 49.4 49.9 51.2 ? 52.1 53.0 53.0 49.5 49.8 52.2 5759 504 6139 59.0 55.7 59.0

10/14 48.6 47.5 57.9 49.4 49.8 50.4 51.6 ? 52.4 52.8 53.9 49.5 51.3 52.7 5459 494 6103 66.0 61.5 62.9

10/15 48.6 ? 47.5 57.8 49.4 49.8 50.6 51.8 52.8 53.7 54.2 49.3 52.1 55.1 5738 440 6093 68.5 61.0 64.4

10/16 48.4 47.4 57.7 49.4 49.5 49.9 51.4 ? 52.6 53.6 54.0 49.1 51.3 54.1 5017 708 6099 64.0 59.8 63.2

10/17 48.5 47.6 57.7 49.8 50.3 51.1 52.0 52.7 53.3 55.1 49.4 53.1 55.8 5740 737 6098 70.5 64.3 68.1

10/18 48.7 47.7 57.6 49.7 50.2 51.0 52.5 53.6 54.5 55.4 49.2 54.0 56.5 5709 496 6109 73.0 64.3 67.8

10/19 49.3 ? 48.0 57.6 49.7 50.2 50.9 52.2 ? 53.3 54.3 55.3 49.2 52.8 56.4 5809 432 6096 73.0 63.7 67.9

10/20 49.2 ? 48.2 57.4 49.8 50.1 50.8 52.2 53.2 54.1 55.7 49.4 52.4 55.7 6113 426 6497 71.5 63.0 67.7

10/21 49.0 ? 48.0 57.5 49.9 50.2 50.8 52.2 53.2 54.0 55.9 49.5 52.6 55.7 5793 491 6503 66.5 60.9 62.0

10/22 48.6 47.8 57.5 49.9 50.0 50.4 51.7 ? 52.7 53.4 55.4 49.5 52.1 55.0 6077 497 6498 58.0 56.1 56.0

10/23 48.8 48.0 57.4 49.7 50.1 50.8 51.8 ? 52.5 53.1 56.0 49.6 52.8 55.7 5997 500 6491 65.5 60.5 64.9

10/24 48.6 47.7 57.3 49.6 49.8 50.4 51.7 ? 52.8 ? 53.7 56.1 49.5 53.3 55.6 5621 509 6491 65.5 60.6 62.4

10/25 49.3 48.0 57.3 49.5 49.7 50.4 51.6 ? 52.5 53.2 55.8 49.2 52.2 54.7 5493 514 6534 57.0 58.4 57.0

10/26 49.2 48.1 57.2 49.6 49.6 49.9 50.6 ? 50.9 51.7 54.7 ? 48.9 ? 48.1 ? 51.6 5611 490 6596 52.0 47.0 50.5

10/27 48.9 48.1 57.2 49.5 49.4 49.7 50.2 ? 50.3 50.7 54.5 49.0 47.2 49.3 5718 493 6592 51.0 44.6 48.2

10/28 49.0 48.4 57.1 49.4 49.4 49.7 50.0 50.0 50.2 54.3 48.7 46.7 48.3 5829 493 6598 52.5 51.2 52.2

10/29 49.1 48.2 57.0 49.3 49.3 49.7 50.0 49.8 50.1 54.4 48.3 46.1 47.6 6137 491 6586 63.0 51.7 55.2

10/30 49.4 48.1 56.9 49.1 49.1 49.6 50.1 ? 50.0 50.3 54.2 48.0 45.9 47.3 5897 502 6502 55.5 47.5 51.9

10/31 49.8 48.3 57.6 49.8 49.7 49.9 50.1 ? 49.9 50.2 53.9 47.9 46.3 47.4 6257 37 6487 56.0 48.3 51.4

Oct 5719 511 6313 66.1 60.6 63.3

177827 15354 195867

Legend Notes 352713 30454 388494

? = 1-9 hours of data missing (Average includes estimations) 1 Temperatures are weighted averages based on individual penstock flow and temperature

! = 10 or more hours of data missing (Average not calculated) Highlighted cells in the TCD column indicate a TCD change was made on that day

# = Station out of service 2 Current Clear Creek River control point (see page 3 for more details)

↑ = Record high air temperature

↓ = Record low air temperature

 = Monthly Averages

48.7 47.7 57.7 50.0 51.9

D

A

T

E

49.6 48.6

CCR2 TCD SAC 1 SHD SPP1 KWK

58.4 51.0 51.5 52.3 54.0 55.5

Mean Daily Air 

Temperatures (°F)

RDD

74.3

Total CFS

54.4

Mean Daily 

Release (CFS)

NFH

59.5

Mean Daily Water Temperatures (°F)

50.2

BND IGO

49.7

BSF

50.7 52.8

Total AF

57.0 55.8

RDB

53.7 54.4

LWS

49.4 51.6

DGC

55.2

2
Code Body of Water Location1 CDEC Link River Point Temp. (°F) Begin Date End Date

TCD N/A Shasta Power Plant N/A Sacramento SAC 54.5 06/07/2022 5/14/2023

SHD Sacramento River 0.3 miles downstream of Shasta Power Plant Click Here Sacramento CCR 53.5 05/14/2023 TBD

SPP N/A Spring Creek Power Plant N/A

KWK Sacramento River 0.8 miles downstream of Keswick Dam Click Here

SAC Sacramento River 4.8 miles downstream of Keswick Dam Click Here

CCR Sacramento River 9.7 miles downstream of Keswick Dam Click Here

BSF Sacramento River 25 miles downstream of Keswick Dam Click Here

JLF Sacramento River 34 miles downstream of Keswick Dam Click Here

BND Sacramento River 41 miles downstream of Keswick Dam Click Here Notes

RDB Sacramento River 58 miles downstream of Keswick Dam Click Here

IGO Clear Creek 7.3 miles downstream of Whiskeytown Dam Click Here 1 Distances are approximate

Station Details Water Right Temperature Control Points

30

38

46

54

62

70

78

86

94

102

110

40

42

44

46

48

50

52

54

56

58

60

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Air Temperature (°F)

Water Temperature (°F)

Sacramento River Mean Daily Temperatures

Redding Air (Observed and Forecasted) TCD KWK SAC CCR BSF

3
Code Body of Water Location1 CDEC Link River Point Temp. (°F) Begin Date End Date

LWS Trinity River 1.1 miles downstream of Lewiston Dam Click Here Trinity DGC 56 Sep-15 Oct-01

DGC Trinity River 19 miles downstream of Lewiston Dam Click Here Trinity NFH 56 Oct-01 Dec-31

NFH Trinity River 38 miles downstream of Lewiston Dam Click Here

 Notes

1 Distances are approximate

Station Details Water Right Temperature Control Points

30

35

40

45

50

55

60

65

70

75

80

85

90

95

100

105

40

43

46

49

52

55

58

61

64

67

70

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Air Temperature (°F)

Water Temperature (°F)

Trinity River Mean Daily Temperatures

Redding Air (Observed and Forecasted) LWS DGC NFH

4
Updated 10/31/2023 at 1515

Latest Profile Date: 10/31/2023

Page Description

6 - Shasta Lake Isothermobaths Plot

7 - Shasta Lake Cold Water Pool Volume ≤52°F

8 - Shasta Lake Cold Water Pool Volume ≤50°F

9 - Shasta Lake Cold Water Pool Volume ≤48°F

10 - Shasta Lake Cold Water Pool Volume ≤52°F - Percent Exceedances

11 - Shasta Lake Cold Water Pool Volume ≤50°F - Percent Exceedances

12 - Shasta Lake Cold Water Pool Volume ≤48°F - Percent Exceedances

13 - Shasta Lake Cold Water Pool Comparison by Year

Shasta Lake Isothermobaths & Cold Water Pool Statistics

2023

5
6

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Isothermobaths Plot - 2023

<46 46-48 48-50 50-52 52-54 54-56 56-58 58-60

60-62 62-64 64-66 66-68 68-70 >70 Storage
7

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤52°F

Avg (1998-2022) 2014 2015 2016 2019 2022 2023
8

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤50°F

Avg (1998-2022) 2014 2015 2016 2019 2022 2023
9

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤48°F

Avg (1998-2022) 2014 2015 2016 2019 2022 2023
10

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤52°F - Percent Exceedances (1998-2022)

2023 95 90 75 50 25 10 5
11

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤50°F - Percent Exceedances (1998-2022)

2023 95 90 75 50 25 10 5
12

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤48°F - Percent Exceedances (1998-2022)

2023 95 90 75 50 25 10 5
Oct-31

2023 ≤52° ≤50° ≤48° Abs. Avg. ≤52° ≤50° ≤48° Abs. Avg.

1998 -894 -816 -692 800 -86 -94 -99 93

1999 -576 -477 -411 488 -55 -55 -59 56

2000 -799 -734 -666 733 -77 -85 -95 85

2001 -892 -754 -630 759 -86 -87 -90 87

2002 -745 -634 -557 645 -71 -73 -79 75

2003 -733 -740 -679 717 -70 -85 -97 84

2004 -947 -793 -662 801 -91 -92 -94 92

2005 -940 -804 -674 806 -90 -93 -96 93

2006 -711 -616 -557 628 -68 -71 -79 73

2007 -973 -813 -666 817 -93 -94 -95 94

2008 -1001 -831 -677 836 -96 -96 -96 96

2009 -962 -801 -658 807 -92 -93 -94 93

2010 -545 -553 -552 550 -52 -64 -79 65

2011 -393 -348 -324 355 -38 -40 -46 41

2012 -653 -536 -482 557 -63 -62 -69 64

2013 -880 -733 -614 742 -84 -85 -87 86

2014 -978 -833 -694 835 -94 -96 -99 96

2015 -933 -786 -686 802 -89 -91 -98 93

2016 -574 -470 -488 511 -55 -54 -70 60

2017 -520 -450 -399 456 -50 -52 -57 53

2018 -826 -718 -647 731 -79 -83 -92 85

2019 -396 -335 -337 356 -38 -39 -48 42

2020 -879 -775 -680 778 -84 -90 -97 90

2021 -1014 -845 -698 852 -97 -98 -99 98

2022 -962 -807 -668 812 -92 -93 -95 94

2023 0 0 0 0 0 0 0 0

∆ TAF % ∆

Shasta Lake Cold Water Pool Comparison by Year (for Specified Date)

Historical - Current (Historical - Current) / Current

13
Updated 10/17/2023 at 1332

Latest Profile Date: 10/17/2023

Page Description

15 - Trinity Lake Isothermobaths Plot

16 - Trinity Lake Cold Water Pool Volume ≤52°F

17 - Trinity Lake Cold Water Pool Volume ≤50°F

18 - Trinity Lake Cold Water Pool Volume ≤48°F

19 - Trinity Lake Cold Water Pool Volume ≤52°F - Percent Exceedances

20 - Trinity Lake Cold Water Pool Volume ≤50°F - Percent Exceedances

21 - Trinity Lake Cold Water Pool Volume ≤48°F - Percent Exceedances

22 - Trinity Lake Cold Water Pool Comparison by Year

Trinity Lake Isothermobaths & Cold Water Pool Statistics

2023

14
15

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Isothermobaths Plot - 2023

<46 46-48 48-50 50-52 52-54 54-56 56-58 58-60

60-62 62-64 64-66 66-68 68-70 >70 Storage
16

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤52°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
17

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤50°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
18

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤48°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
19

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤52°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
20

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤50°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
21

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤48°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
Oct-17

2023 ≤52° ≤50° ≤48° Abs. Avg. ≤52° ≤50° ≤48° Abs. Avg.

2000 131 53 -14 66 21 11 -4 12

2001 -32 4 18 18 -5 1 5 4

2002 -3 25 60 29 -1 5 17 8

2003 211 97 -13 107 34 19 -4 19

2004 -17 -30 -64 37 -3 -6 -18 9

2005 254 183 9 149 40 36 3 26

2006 355 230 165 250 57 46 47 50

2007 74 117 151 114 12 23 43 26

2008 -277 -248 -187 237 -44 -49 -53 49

2009 -276 -236 -191 234 -44 -47 -54 48

2010 51 -13 -112 59 8 -2 -32 14

2011 498 433 319 417 79 86 91 85

2012 323 368 382 358 51 73 109 78

2013 -127 -86 -63 92 -20 -17 -18 18

2014 -492 -393 -272 385 -78 -78 -77 78

2015 -531 -433 -314 426 -84 -86 -90 87

2016 -286 -262 -177 241 -46 -52 -50 49

2017 224 134 93 150 36 26 27 30

2018 212 252 257 240 34 50 73 52

2019 508 501 469 493 81 99 134 105

2020 -4 55 28 29 -1 11 8 6

2021 -469 -371 -250 363 -75 -73 -71 73

2022 -451 -358 -238 349 -72 -71 -68 70

2023 0 0 0 0 0 0 0 0

Trinity Cold Water Pool Comparison by Year (for Specified Date)

∆ TAF % ∆

Historical - Current (Historical - Current) / Current

22
Updated 10/12/2023 at 1449

Latest Profile Date: 10/12/2023

Page Description

24 - Whiskeytown Lake Isothermobaths Plot

25 - Whiskeytown Lake Cold Water Pool Volume ≤60°F

26 - Whiskeytown Lake Cold Water Pool Volume ≤58°F

27 - Whiskeytown Lake Cold Water Pool Volume ≤56°F

28 - Whiskeytown Lake Cold Water Pool Volume ≤60°F - Percent Exceedances

29 - Whiskeytown Lake Cold Water Pool Volume ≤58°F - Percent Exceedances

30 - Whiskeytown Lake Cold Water Pool Volume ≤56°F - Percent Exceedances

31 - Whiskeytown Lake Cold Water Pool Comparison by Year

Whiskeytown Lake Isothermobaths & Cold Water Pool Statistics

2023

23
24

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Isothermobaths Plot - 2023

<46 46-48 48-50 50-52 52-54 54-56 56-58 58-60

60-62 62-64 64-66 66-68 68-70 >70 Storage
25

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤60°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
26

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤58°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
27

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤56°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
28

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤60°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
29

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤58°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
30

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤56°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
Oct-12

2023 ≤60° ≤58° ≤56° Abs. Avg. ≤60° ≤58° ≤56° Abs. Avg.

2000 16.5 51.1 67.1 44.9 18.4 112.6 711.3 280.8

2001 50.6 90.7 114.6 85.3 56.3 200.0 1215.0 490.4

2002 56.7 93.1 105.5 85.1 63.0 205.4 1118.8 462.4

2003 52.9 95.0 121.0 89.6 58.9 209.5 1282.8 517.1

2004 68.0 106.0 120.6 98.2 75.7 233.9 1279.1 529.5

2005 22.3 44.7 11.0 26.0 24.8 98.6 116.7 80.0

2006 38.6 80.3 110.1 76.3 42.9 177.1 1167.7 462.6

2007 53.3 94.8 64.9 71.0 59.3 209.2 688.3 318.9

2008 34.2 72.1 95.6 67.3 38.0 159.0 1013.8 403.6

2009 35.7 63.7 23.8 41.1 39.7 140.5 252.6 144.3

2010 48.7 15.4 -4.6 22.9 54.1 34.0 -49.3 45.8

2011 33.6 71.2 60.9 55.3 37.4 157.1 646.4 280.3

2012 71.6 61.7 44.0 59.1 79.6 136.1 467.0 227.6

2013 125.7 87.1 104.2 105.7 139.9 192.1 1104.8 478.9

2014 33.8 39.1 0.6 24.5 37.6 86.3 6.0 43.3

2015 37.8 -7.0 -9.4 18.1 42.0 -15.4 -100.0 52.5

2016 36.5 -2.1 -9.4 16.0 40.6 -4.7 -100.0 48.4

2017 114.4 56.7 69.0 80.0 127.3 125.1 731.9 328.1

2018 48.8 63.0 2.5 38.1 54.3 139.1 27.0 73.5

2019 2.7 31.0 28.3 20.7 3.0 68.4 300.1 123.9

2020 22.9 52.5 60.2 45.2 25.5 115.9 638.7 260.0

2021 116.9 72.5 63.5 84.3 130.0 160.0 673.6 321.2

2022 -66.2 -32.6 -4.0 34.3 -73.6 -71.9 -42.7 62.7

2023 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

∆ TAF % ∆

Whiskeytown Cold Water Pool Comparison by Year (for Specified Date)

Historical - Current (Historical - Current) / Current

31